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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 3.2 Final//FR"><!-- Converted with LaTeX2HTML 95.1 (Fri Jan 20 1995) --><!-- by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds --><!-- Modified Simulog 03/97 --><HTML><HEAD><TITLE>3.5 Changing the type of a D.S. MUA</TITLE><LINK REL=STYLESHEET TYPE="text/css" HREF="./Modulef.css" TITLE="Modulef CSS"><meta name="description" value="3.5 Changing the type of a D.S. MUA"><meta name="keywords" value="Guide6"><meta name="resource-type" value="document"><meta name="distribution" value="global"></HEAD><BODY BGCOLOR="#FFFFFF"><P> <IMG SRC="../icons/smallmod.gif" WIDTH=211 HEIGHT=50 ALIGN=BOTTOM ALT="Modulef"><A NAME=tex2html797 HREF="node26.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/previous_motif.gif" ALT="previous"></A><A NAME=tex2html803 HREF="node22.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/up_motif.gif" ALT="up"></A><A NAME=tex2html805 HREF="node28.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/next_motif.gif" ALT="next"></A><A NAME=tex2html807 HREF="node2.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/contents_motif.gif" ALT="contents"></A><A HREF="../Guide6-18/node27.html"><IMG BORDER=0 SRC="../icons/zoom18.gif" ALIGN=BOTTOM ALT="[BIG]"></A><A HREF="../Guide6-14/node27.html"><IMG BORDER=0 SRC="../icons/zoom14.gif" ALIGN=BOTTOM ALT="[Normal]"></A><A HREF="../Guide6-10/node27.html"><IMG BORDER=0 SRC="../icons/zoom10.gif" ALIGN=BOTTOM ALT="[small]"></A><BR><B> Next: </B> <A NAME=tex2html806 HREF="node28.html">3.6 Changing the type of a </A><B>Up: </B> <A NAME=tex2html804 HREF="node22.html">3 Manipulation of structures and miscellaneous</A><B> Prev: </B> <A NAME=tex2html798 HREF="node26.html">3.4 Creating a D.S. NOPO </A><B><A HREF="node2.html" >Contents</A></B><HR SIZE=3 WIDTH="75%"><H1><A NAME=SECTION03450000000000000000>3.5 Changing the type of a D.S. MUA</A></H1><P><P><P>Module CSAMAT changes the type of a D.S. <b> MUA</b>, i.e. changes to a D.S. <b> AMAT</b> with compact storage; it also allows to compress the matrix(see also CCMUA).<P><PRE> SUBROUTINE CSAMAT(M,RAPORT,NFACTO,NFMUA,NIMUA,NFAMAT,NIAMAT,NTAMAT)C ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++C AIM : ELIMINATE THE COEFFICIENTS A(I,J) OF THE I.D.S. MUA SUCH THATC --- ABS(A(I,J)) < ABS(A(I,I)) * RATIOC MUA IN DIRECT ACCESS ( INPUT ) ==> AMAT SEQUENTIAL ( OUTPUT )C OR SEQUENTIALC ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++</PRE><P>where<P><UL><LI> M is the super array,<LI> RAPORT is the ratio used to eliminate the matrix coefficients,<LI> NFACTO is the matrix factorization option (0 : no factorization,1 : Cholesky, 2 : Crout),<LI> NFMUA, NIMUA are the file number and level of input structure <b> MUA</b>,<LI> NFAMAT, NIAMAT and NTMAMT are the file number, the level and the number of arrays toassociate to the output structure <b> AMAT</b>.</UL><P>If NTAMAT is non-zero, the associated descriptive arrays must be input (see above).<P><P><P><HR SIZE=3 WIDTH="75%"><IMG SRC="../icons/smallmod.gif" WIDTH=211 HEIGHT=50 ALIGN=BOTTOM ALT="Modulef"><A NAME=tex2html797 HREF="node26.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/previous_motif.gif" ALT="previous"></A><A NAME=tex2html803 HREF="node22.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/up_motif.gif" ALT="up"></A><A NAME=tex2html805 HREF="node28.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/next_motif.gif" ALT="next"></A><A NAME=tex2html807 HREF="node2.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/contents_motif.gif" ALT="contents"></A><A HREF="../Guide6-18/node27.html"><IMG BORDER=0 SRC="../icons/zoom18.gif" ALIGN=BOTTOM ALT="[BIG]"></A><A HREF="../Guide6-14/node27.html"><IMG BORDER=0 SRC="../icons/zoom14.gif" ALIGN=BOTTOM ALT="[Normal]"></A><A HREF="../Guide6-10/node27.html"><IMG BORDER=0 SRC="../icons/zoom10.gif" ALIGN=BOTTOM ALT="[small]"></A><BR><B> Next: </B> <A NAME=tex2html806 HREF="node28.html">3.6 Changing the type of a </A><B>Up: </B> <A NAME=tex2html804 HREF="node22.html">3 Manipulation of structures and miscellaneous</A><B> Prev: </B> <A NAME=tex2html798 HREF="node26.html">3.4 Creating a D.S. NOPO </A><B><A HREF="node2.html" >Contents</A></B><BR> <HR><P><ADDRESS></ADDRESS></BODY></HTML>⌨️ 快捷键说明
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